Re: [Xen-devel] [PATCH 04/13] xen/arm: Add ARCH_WORKAROUND_2 probing

2018-05-30 Thread Julien Grall
Hi, On 05/29/2018 10:35 PM, Stefano Stabellini wrote: On Sat, 26 May 2018, Andrew Cooper wrote: On 25/05/2018 21:51, Stefano Stabellini wrote: On Wed, 23 May 2018, Julien Grall wrote: Hi, On 05/23/2018 10:57 PM, Stefano Stabellini wrote: On Tue, 22 May 2018, Julien Grall wrote: As for

Re: [Xen-devel] [PATCH 04/13] xen/arm: Add ARCH_WORKAROUND_2 probing

2018-05-29 Thread Stefano Stabellini
On Sat, 26 May 2018, Andrew Cooper wrote: > On 25/05/2018 21:51, Stefano Stabellini wrote: > > On Wed, 23 May 2018, Julien Grall wrote: > >> Hi, > >> > >> On 05/23/2018 10:57 PM, Stefano Stabellini wrote: > >>> On Tue, 22 May 2018, Julien Grall wrote: > As for Spectre variant-2, we rely on

Re: [Xen-devel] [PATCH 04/13] xen/arm: Add ARCH_WORKAROUND_2 probing

2018-05-25 Thread Andrew Cooper
On 25/05/2018 21:51, Stefano Stabellini wrote: > On Wed, 23 May 2018, Julien Grall wrote: >> Hi, >> >> On 05/23/2018 10:57 PM, Stefano Stabellini wrote: >>> On Tue, 22 May 2018, Julien Grall wrote: As for Spectre variant-2, we rely on SMCCC 1.1 to provide the discovery mechanism for

Re: [Xen-devel] [PATCH 04/13] xen/arm: Add ARCH_WORKAROUND_2 probing

2018-05-25 Thread Stefano Stabellini
On Wed, 23 May 2018, Julien Grall wrote: > Hi, > > On 05/23/2018 10:57 PM, Stefano Stabellini wrote: > > On Tue, 22 May 2018, Julien Grall wrote: > > > As for Spectre variant-2, we rely on SMCCC 1.1 to provide the discovery > > > mechanism for detecting the SSBD mitigation. > > > > > > A new

Re: [Xen-devel] [PATCH 04/13] xen/arm: Add ARCH_WORKAROUND_2 probing

2018-05-23 Thread Julien Grall
Hi, On 05/23/2018 10:57 PM, Stefano Stabellini wrote: On Tue, 22 May 2018, Julien Grall wrote: As for Spectre variant-2, we rely on SMCCC 1.1 to provide the discovery mechanism for detecting the SSBD mitigation. A new capability is also allocated for that purpose, and a config option. This

Re: [Xen-devel] [PATCH 04/13] xen/arm: Add ARCH_WORKAROUND_2 probing

2018-05-23 Thread Stefano Stabellini
On Tue, 22 May 2018, Julien Grall wrote: > As for Spectre variant-2, we rely on SMCCC 1.1 to provide the discovery > mechanism for detecting the SSBD mitigation. > > A new capability is also allocated for that purpose, and a config > option. > > This is part of XSA-263. > > Signed-off-by:

[Xen-devel] [PATCH 04/13] xen/arm: Add ARCH_WORKAROUND_2 probing

2018-05-22 Thread Julien Grall
As for Spectre variant-2, we rely on SMCCC 1.1 to provide the discovery mechanism for detecting the SSBD mitigation. A new capability is also allocated for that purpose, and a config option. This is part of XSA-263. Signed-off-by: Julien Grall --- xen/arch/arm/Kconfig